S-92865A728 1/2"-13 x 4" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior load-bearing capacity with 120,000 psi tensile strength, ideal for demanding structural applications
- Enhanced corrosion resistance from zinc plating, extending service life in harsh industrial environments
- Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent fastening performance
- High-strength material construction meeting Grade 5 specifications for dependable mechanical performance
- Optimized torque transmission through external hex drive design, preventing tool slippage during installation
- Full-length threading providing maximum grip and adjustment flexibility across the entire 4" length
- Regulatory compliance assurance with RoHS 3 and REACH standards for safe, environmentally conscious usage
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 5 hex head screws address critical challenges in machinery assembly, structural framing, and equipment manufacturing. The zinc plated steel construction provides essential corrosion protection in environments exposed to moisture and chemicals, while the UNC coarse thread profile ensures rapid installation and reduced cross-threading risks. With Rockwell C25 hardness and 120,000 psi tensile strength, these fully threaded fasteners maintain integrity under extreme vibration and dynamic loads. The external hex drive and 1/2"-13 thread size make them compatible with standard industrial tools, streamlining maintenance and assembly processes in construction, automotive, and manufacturing sectors where ASME B18.2.1 compliance is mandatory for quality assurance.
Specification Summary & Compliance
This hex head screw features precision Class 2A thread fit with UNC coarse threading (1/2"-13) and 4" length in the inch measurement system. Manufactured to ASME B18.2.1 specifications where identified as SAE J429, ensuring dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety standards for industrial fastener applications.
